Typewriting machine



Aug. 11, 1925.

` J. wALDHr-:IM TYPEWRITING'MACHINE -5 Sheets-Sheet` l Original FiledAug. 8, 1921 RMN MPM@ V 3 Sheets-SheetA 2 mum.

T..MI w.: www@ i-.

J. WALDHEIM TYPEWRITING MACHINE original 'Filed Aug. s, 1921 2%..

Aug. 11, 1925.

Aug. 11, 1925. l

i J. WLDHEM TYPEWRITING MACHINE Original Filed Aug. 8, 1921 3Sheets-Sheet 3 nted fitug. ll, i925.

i inane ravens orales.

JOHN VALD'HEIM'., OF ELZABETI-I, NEW JERSEY, ASSIGNOR T0' UNDERWOODTYPE- WRITER COMPANY, OF Nami] YORK, N. Y., A CORPORATION OF DEL-AWARE.

TYPEW-ITING MACHINE.

Application filed August 8, 1921., Serial No. 490,505. Renewed June 25,1925.

To all fio/ioni it may concern.'

Be it kno vn that l, @loi-iN VVALDi-iniii, a citiaen ot the TUnitedtates, residing in Elizaoetli, in the county of Union and State of Newersey, have invented certain new and useful Improvements inrllypewriting Machines, of which the following is aspeciiication.

This invention relates to souiid-deadening cases or hoods, and is ot thesame general type disclosed in *1y pending application, Crieiial No.466,820, tiled May el, 1921.

The casing disclosed in said application comprises a body part and acover part or ceiling hinged to said body part. rl'he latter is providedwith a large front opening, through which the machine may be insertedinto the casing, the banks of type-keys projecting forwardly from saidasing after the maclii Ae has been inserted, and a coverpiate beingprovided for closing the front opening. The edge ot the cover part formswith an edge of tie body part a slot at the front, through which thevarious carriageoperating members, such as the line-space lever, thecarriage-return finger-piece, and the carriage-release lever, extend;sounddeadening means in the 'torni of co-operating strips or cushions onthe body part and cover part g provided for closing the slot. rffhecasing is provided with lateral extensions at the sides, in which thetypev.'riter-crrriz`l operates to the right and lett, said ca g thuscompletely enclosing 35 the noise-producing parts of the machine.

y'lhe sound-deadening casing oit this in- Yeition is in the nat-ure otan improvement on my application, Serial No. 88,30% liied July 9K9,1921, in which the casing is especially adapted tor typewiiting machineshaving l ii carriages, the iateral extensions bei de 'achable `from amain or central section et' the casing, so that they may be replaced byextensions oi' din-ferent lengths,

A to the length oi the carriage on "ne, said extensions being alsodethat the casing occupies a minispace when the machine is not in mumor" use and f the machine is mounted upon a swingable Ause of adrop-head desir, so as not to interero with the lowering ot the machinewith Ahe casing into the desk.

l, L Y L l nn obyect of the pieseno invention is to provide lateralextensions which may readily be adjusted to vary the length thereofaccordingto Ithe length of the typewritercarriage and which may readilybe collapsed to clear the top of the desk without removing them from thecasing when it is desired to lower the typewriting machine and casinginto the desk. To this end, each lateral extension is comprised ofseveral telescoping members sliding one in the other. ri'hus, there isavoided the necessity of removing the casing when the total width ot'the latter with its extensions in use exceeds the width of the swingablebase upon which the machine is mounted, in order that the machine may beswung to the interior oin the desk.

iily the main or centrall section comprises a separate body part andcover part, and the slot formed at the front between these parts is notcontinued into the eX- tensions. lt the line-space handle andcarriage-release lever occupy their usual positions near the ends of thecarriage, they would entend beyond the slot in the main section when thecarriage travelled to the right and left, and it would be necessary tocontinue to slot into the extensions. This invention provides meanswhereby the carriage may be returned and the line-space mechanism andcarriage-release lever operated trom outside the casing, said meansbeing mounted on the typewriter-carriage near the center portion, sothat travel of the carriage to the'right or left will not carry theoperating means beyond the slot in the main section.

@ther features and advantages will hereinafter appear.

la the accompanying drawings,

Y Figure 1 is a front elevation, partly sectioned, of the casing appliedto an Underwood standard typewriting machine.

Figure 2 is a liront elevation of the front bar of thetypewriter-carriage and showing the line-space-handle-operating meansand the carriage-release-lever-operating means applied to said frontbar.

Figure 3 is a plan View, partly sectioned, of the device shown in Figurel.

Figure 4f is a plan view of the front coverplate disassembled from thecasing.

Figure 5 is a side view, vertically sectioned, along the line 5-5 otFigure l.

Figure 6 is a side view, vertically sectioned, along the line G-G ofFigure l.

CII

llU

The Underwood standard typewriting machine comprises av main frame 10supported by feet 11 upon a base, said main frame having a forwardextension 12 in which are positioned banks of keys 13operating-type-bars, lnotl shown, to cause types carried by saidtype-bars to print against a platen 16 journaled in the end walls V1'?of a platen-frame 18. Said framev forms parts of a carriage 2O mountedfor letterfeeding movement upon a front rail 19 and a rea-r 'rail' 21 onthe' xmain frame 10. The platen maybe rotated in either direction byknobs or finger-wheels 24 fixed upon a shaft `25, upon which the platenis mounted., or in line-spacing direction by the usual lire-spaceVmechanism, of which slide 2G and line-space lever 27` are shown. rlhecarriage may be released from the usual escapement devices (not shown)by the usual forwardly-eiitcnding carriage-release lever 2S.

For dea'dening the sounds arising in the typing operation, there isprovided a sounddeadening casing or hood comprising a main or centralsection, indicated generally by the numeral 40, and auxiliary sections,indicated Y generally by the numeral 41forming lateral extensions ofsaid main section. Said main section comprises a body part 42 and acover part 43 hinged at `the rear to said body part, saidy body partcomprising a rear wall 45, short side walls 46 and a front wall in theform of, two end sections 47, said end sections .being spaced apa-rt toprovide a large fronty opening through which the machine may beinsertedinto the casing. The side walls 46 are provided with short hori-Zontalextensions 50, so that the total width of the main section issubstantially the same as the `width of the machine `when the carriageherein, shown is centrally positioned. The. machine is positioned withinthe casing by means of abutments 52 fixed to the rear of the body part,the forward extension 12 extending forwardly `from said casing to exposethe banks of keys. To close all of the front opening not occupied by theforward extension 12, there is provided a cover-plate 53, which ismounted upon the end portions 47 by means of latches 54 operated byturn-buttons 55, said latches being passed through similarly shapedopenings 56 inthe end portions 47, and then turned un til lthey catchbehind said end portions to iiXV the cowferplate in position on the endportions 47. The machine is thus enclosed at the rear, front, and partlyat the sides byy the short side walls 46, and, to close said machine atthe topthere is provided the cover part 43 having a ceiling 5S extendingforwardly and downwardly and terminating in a short front wall 59, saidceiling being` provided with a. window or transparent plate 60 to permitthe machine on the interior of the casing to be viewed. T he front wall59 terminates some distance above the top ofV coverplate 53, and thusforms a slot,

through which various carriage-operating mechanisms to be hereinafterdescribed) may pass, and, to close all of the slot not actually occupiedby these mechanisms, there are mounted upon said front wall 59 and saidcover-plate 53 co-ope 1ating strips or cushions 61 and G2, the two-plyedges of said cushions beingl clamped between eo-operating members 63 toform units which are mounted upon said front wall and said cov`er-plate, respectively.

it will be obvious from the drawings that, when t-he machine is`positioned within vthe main casing 40, operation of the machine willcause the carriage to move to the right or left, and, hence, beyond theopen sides of said main section. Toprovide,meansofor closing` the opensides of said main section and permit the carriage to travel -freelytherein, there are provided the lateral extensions 41, having open innerends which fit into the open sides of the main casing 40 and closedouter ends to prevent passage of sounds therethrough. Tiilhen themachine is not in use, it is frequently desirable to reduce the amountof space. occupied. by the casing. This is particularly desirable whenthe casing is applied to a typewriting machine mounted upon theswingable base of a drop-head typewriterV desk, in which case it issometimes foundthat the total width of the casing exceeds the width ofthe swingable base, and, hence, it is necessary Ito remore the casingwhen it is desired to lower the machine to the interior of the desk. Inorder to render it unnecessary to remove the casing when it is desiredto lower the inachine, the lateral extensions 41 are collapsiblyconstructed of telescoping sections 64, which may be slid into oneanother, all of said sections being slidable into the inain casing 40,and, since the latter is of substantially the same width as thetypewriting machine, the casing and machine may be lowered together intothe interior of the desk. When the machine and casing are raised, it isonly necessary to pull out the telescoping sec-tions of the extensions41, and the machine and casing are in their operative positions. Tomount the side extensions telescopically within one another and with.-in the main casing" 40, each section 64, which is open at its outer end,is provided at its outer end with inwardly-turned f1. nges (35 whichslide along the outer surface of the next smaller member, and withoutwardlyturned flanges 65 which slide on the inner surface of the nextlarger memberand serve limiting stops for the inwardly-turned flanges65. The telescoping sectionL which slides upon the main section of thecasing would not have guiding surface at the top when the cover part wasraised, unless a fixed surface were provided, upon which the flanges ofsaid telescoping member could slide. This fixed surface is provided inthe form of two end pieces 70, having inwardlyturned flanges 7l withwhich the outwardlyturned flanges G6 of the first, or innermost,telescoping member, co-o-perate. Stops 72 may be detachably mounted onthe inner surfaces of the main section and of each telescopingmember tolimit the inward movement of the respective telescoping member therein.The main section of the casing and each telescoping member are linedwith sound-deadening,` material 7 3, into which slots 74tare cut topermit flanges 66 to slide. in Contact with the inner surfaces of then'iembers and main sect-ion. To permit the telescoping members to bedrawn out of the main section, there are provided fingerpieces 75, whichalso support said lateral extensions upon a base, said finger-pieces 7 5being;` pivotally mounted at 7 6 upon the extensions, and bein;4swingable to effective and ineffective positions, in which positionsthey are held by spring-detente 77 (Figure 6), carried by saidextensions and eneno'- reali,

ing" in openings 78 and 79, respectively, in the finger-pieces.

It is desirable to provide means independent of the casing whereby theline-space mechanism and carriage-release lever may be operated and thecarriage returned from the exterior of the casing, so that the ordinarytyping operations may be carried on without raising the cover orremoving any part-.of the casing. However, if the linespace lever 27 andcarriage-release lever 28 were extended directly forward to pass throughthe front slot and between the cushions 6l` it would be necessary toextend the slot into the extensions 4l, since the lever 27 and lever 28are mounted near the eues of the typewriter-carriage, and, upon movementof the carriage to the right or left of its center position, theseelements would pass beyond the main casingl 40 and into the extensions4l. In order to simplify the construction of the casing, it is notdesirable to extend the slot into the extensions 41, and, therefore, theline-space lever 27 and carriage-release lever 28 are not extendedforwardly but terminate within the casing. To operate said line-spacelever 27, there is provided a laterally-positioned link or bar 85 havinga hook 86, engagingthe left-hand side of the lever 27, said link beingpositioned in guide-members 87 fixed to the front bar of the carriageand operable laterally by means of a finger-piece or handle 88 fixed tosaid bar and extending,` forwardly through the front slot. Since thehandle 88 may be fixed to said link at any point, it is preferablyattached near the central portion of the front bar of the carriage, sothat the movement of the carriage to the right or left will, therefore,not carry the handle 8S beyond the ends of the main section 40, and,hence, not beyond the ends of the front slot. To operate thecarriage-release lever by means which is likewise positioned near thecentral portion of the front bar of the carriage and which extendsforwardly through the front slot, there is provided a lever 90, pivotedin ears 91 struck up from a bracket 92, fixed to the front bar of thecarriage, the rear end of said lever having` an inwardlyturned lip 90ato engage under one end of a lever 93, to operate the latter about apivot 94; on the bracket 92, so that downwarc movement of the front oflever SO will cause downward movement of one end 95 of lever 93, saidend being` in contact with release lever ,2S to depress the latter when.lever 90A is operated. The spring which normally presses the releaselever 28 upwardly will be suiiicient to restore the levers 90 and 93 totheir normal positions when the operator releases lever 90. Similarly, acarriage-return finger-piece 96 may be fixed to the central portion ofthe front bar of the carriage to extend forwardly tl rough the frontslot, so that operati-on of the carriage to the right or left will notcarry finger-piece 96 beyond the ends of the front slot.

Variations may be resorted to within the scope of the invention, andportions of the improvements may be used without others.

Having thus described my invention, l claim:

l. A sound-deadening casing for a typewriting machine havingl acarriage, said casing comprising a central section to contain themachine when the carriage is in central position and extensible endsections so constructed that they may be extended for typing, and may beleft in extended condition to accommodate the travel of the carriageand, when the typing is completed and the carriage returned to itsnormal position, may be pressed inwardly to collapsed condition.

A sound-deadening casing for a typewriting machine having` a carriage,said casing comprising` a central section to contain the machine whenthe carriage is in central position and extensible end sectionscomprising` telescoping members so constructed that when drawn out,preparatory to typing., to accommodate the travel of the carriage, theywill remain in extended condition as long as desired, and, uponcompletion of the typing and return of the carriage to its centralposition, may be pressed inwardly to collapsed condition, eachtelescoping member adjacent the central section being slidable into thelatter.

3. A sound-deadening casing` for a typewriting` machine having acarriage, said casing comprising a central section to contain themachine when the carriage is in central position and extensible endIsections so con structed that, when drawn out to extendedY condition toaccommodate the travel ot the carriage, they will remain insuch'condition until collapsed manually, said lend sections being somounted that1 when collapsed, they may be slid into said centralsection.

4. A sound-deadening casing for a typewriting machine having a carriage,said casing comprising a central section to contain the machine when thecarriage is. in central position and end sections' comprisingtelescoping members Vmovable* Voutwardly tovform extensions of saidcentral section to accommodatethe travel of kthe carriage and movableinwardly to collapse said end sections to economiZ-e space when themachine is not in use, and meansfor limiting the outward movement ofsaid telescoping members, said meanscomprising oppo sitely-turnedflanges on the inner andouter edges of saidmembers, the yflanges on theinner edges otpsaid members co-operating with the flanges on the outeredges ofv the adjacent members to limit the outward movement of saidmembers.

5. A sound-deadening casing Jfor a type` writing machine having acarriage, said casing comprising a central section to contain themachine when the carriage is in central position and end sectionscomprising telescoping members movable outwardly t0 form extensions ofsaid central section and movable inwardly to collapse said end sectionsto economizegspace when the machine is not in use, and means forlimiting the outward movement of said telescoping members, said meanscomprising outwardly-turned flanges on the inner ends oi" said membersand inwardly-turned flanges on the outer ends of said membersftheoutwardly-turned flanges of said members engaging the inwardly-turnedflanges of the adjacent members to limit the outward movement of saidmembers.

6. A sound-deadening casing for a typewriting machine having a carriage,said casing comprising a main section into which the machine is insertedand which has open sides, extensions mounted on the sides of the mainsection andcomprising telescoping members, the members nearer the mainsection being open at both sides: to permit the carriage to operatetherein, and the mem bers farthest from the main section being closed attheir outer sides to prevent escape rof sound through said extensions,and means carried by saidoutermost member for extending `and collapsingsaidv extensions and for supporting the outer ends of said eX- tensionsupon the supportfor saidr machine and said casing. v

7. Ay sound-deadening casing for a typewriting machine having acarriage, said lcasing comprising a main section into which teweeg themachine is inserted and which has open sides, extensions mounted on thesides of the main section and comprising telescoping members, themembers nearer the main section being open at both sides to permit thecarriage to operate therein,`an`d the members farthest from themainsection being closed at their outer sides to prevent escape of soundthrough said extensions, and a combined linger-piece and support formov-y ing the telescoping members of each eX- tension and for supportingthe outer ends of said members upon thesupport for said machine and saidcasing, said finger-pieces and supports being mounted on said extenfsions and swingable tofeftective and vineffective positions.

8. A sound-deadening casing 'for a typewriting p machine having' acarriage, said casing comprising a main section into which the machineis inserted and which has open sides, extensions mounted on the sides otthe main section and comprising telescoping members, the members nearerthe main secltion being open at both sides to permit the carriage tooperate therein, and the members farthest from the main section beingclosed at their outer sides to prevent escape of sound through saidextensions, and a combined finger-piece and support for mov ing, thetelescoping members of each extension and for supporting the outer endsof said members upon the support for'said machine and said casing, saidfingenpieces and supports being pivotally mounted on said outermostmember and swingableto effective and ineffective positions, and meanscarried by each of said members, closed at their' outer sides, 'forholding the corresponding linger-piece and support in effective orineffective position.

9. The combinationwith a sound-deaden ing casing for a ltypewritingmachine, said easing comprising a main section into which the machine isinserted, said main sect-ion having open sides and uhaving a slot, saidVmachine having a carriage and various operating levers on saidcarriage, said carriage and levers: operating to the right andlettbeyond said, open sides, and extensions mounted upon said open sides andin which said carriage andlevers operate, of means independentof thecasing andext'ending to the outsideuof the casing for operating saidlevers, said means being connected to said levers to operate in saidslot in all positions of the carriage. l

n 10(V The combination with aisounddeaden- `ing casing foratypewritingmaclnne, said casing comprising a mainsection into which themachine inserted, said main section havingopen sides and" ayslot at the`front, said machine having a carriage andvarious operating leversmounted on said carriage near the ends thereof, the ends of saidcarriage operating to the right and lett beyond said open sides, thecentral portion ot said carriage operating at all times Within the mainsection, and extensions mounted upon said open sides and in which saidlevers operate, of means independent of the casing Jor operatingsaidlevers, said means extending to the outside of said casing and beingmounted on the central portion of the carriage to operate at all timesWithin the limits of said main section, said means being connected tosaid levers and operating in said slot in all positions of the carriage.

11. The combination with a sound-deadening casing for a typewritingmachine, said casing` comprising a main section into Which the machineis inserted, said main section having open sides and a slot at thefront, said machine havingA a carriage comprising a carriage-releaselever mounted thereon, said carriage-release lever operating bevond themain section, the central portion of said carriage operating' atI alltimes Within the main section, and extensions mounted upon said opensides and Within which said car` riage and release lever operate, ofmeans for operating said release lever, said means extending to theoutside of said casing and being' mounted on the central portion of thecarriage to operate at all times Within the limits et said main section,said means beingg` connected to said release lever and operating in saidslot in all positions of the carriage.

12. The combination with a sound-deadening casing for a. tvpevvritingmachine, said casing comprising a main section into which the machine isinserted, said main section having open sides and a. slot at the front,said machine having` a carriage comprising' a carriage-release levermounted thereon. said carriage-release lever operating bevond the mainsection, the central portion ot said carriage operating` at all timeswithin the main section, and extensions mounted upon said open sides andWithin which said carriage and release lever operate, ol" means foroperating` said release lever, said means comprising a lever extendingto the outside of said casing and pivotallv mounted on the centralportion of the carriage to operate at all times Within the limits ofsaid main section, said lever being connected to said release lever andoperating in said slot in all positions of the carriage.

13. The combination With a sound-deaden-l ing; casing` for atypewriting` machine, said casing comprising;- a main section into whichthe machine is inserted, said main section iaving open sides and a slotat the front, said machine having a carriage comprisingV acarriage-release lever mounted thereon, said carriage and release leveroperating beyond the main section, the central portion et said carriageoperating` at all times Within the main section, and extensions mountedupon said open sides and Within which said carriage and release leveroperate, of means for operating` said release lever, said meanscomprising a lever extendingto the outside of said casing and pivot-allymounted on the central portion oi' the carriage to opcrate at all timesWithin the limits of said main section, and a second lever' pivotallymounted on said carriage and connecting said iirst lever and saidrelease lever so that operation of said first lever operates saidrelease lever, said lirst lever operating in said slot in all positionsot the carriage.

14. A sound-deadening casing for a type- Writing machine having acarriage, said casing,` comprising' a central section and collapsibleend sections or extensions so constructed that thej,7 may be adjusted tolengths sucient to accommodate the travel of the carriage and suchadjustment may be retained as long' as desired.

15. A sound-deadening casing for a type- Writing machine, said casing'comprising a central section and end sections -or extensions in whichthe carriage of the typewriting machine ma;7 operate, each end sectionhaving, a closed outer end, said end sections being adjustable to var vtheir length so that their closed outer ends may assume and remain, inpositions slightly beyond the range of travel of the carriage.

16. The combination with a sound-deadening casing comprising a. mainsection, said main section having' open sides and a slot extending' fromside to side thereof, said machine having a carriage and a line-spaceoperating` lever on said carriage, said carriage and lever operating' tothe right and left bevond the open sides oi the main section, and endsections mounted upon the open side of the central section and in whichthe carriage and said lever operate, oi means mounted on said carriageindependent of said casing, said means extending' to the outside of thecasing and being connected to said line-space lever.

17. A sound-deadening casing for a type- Writing; machine having acarriage, said casing comprising' a central sectionv to contain themachine, lateral extensions of said central section comprising`telescoping members to enable said extensions to be adjusted to lengthsto accommodate the travel of the carriage, and linings ofsound-deadening` material for each of said members.

18. A sound-deadening casing` tor a type- Writing' machine having; acarriage, said casing' comprising a central section to contain themachine, lateral extensions of said central section comprising`telescoping members to enable said extensions to be adjust-ed to lengthsto accommodate the travel of the carriage, linings of sound-deadeningmaterial for each of said members, and means to limitthe outwardmovement ofsaid members comprising an inwardly projecting iiange at theouter yend o'feach member open at its outer end and short flangesextending outwardly romftlie inner end of the next member to engage theiirst flange when the extensions are fully extended, the liningof eachmember in which another is telescoped being grooved to accommodate theshort langes. e

19. The combination With a typewriter comprising a carriage, a platenjourn-aled therein and a line-space lever at one end oi said carriage,of an actuator for said linespace lever for use 'in connection With asound-deadening casing enclosing thel ma.- chine and having at its fronta slot normally closed by cushioning members on opposite sides thereof,said actuator comprising a slide mounted on the front partof thecarriage and having a hook to engage the line-space lever, and a handlenear the middle of the carriage and extending yforwardly through saidslot.

20. A sound-deadening casing for al type- Writing machine having acarriage, said casing compri-sing a main part, members slida ble on saidmain part `for movement out'- Wardly` at each side to form closed extensions of said main part to accommodate'the travel of the carriage andslidable inwardly to compact form when the machine is not hangingextensions of said main part to accommodate the travel of the carriageand slidable inwardly to compact forin When the machine is not in use,sound-deadening material betveen said main part and said slidablemembers to prevent the escape of sound and to hold them by friction inany positions in which they may be placed, and supports for the outerends of said eXtensions. i

22. The combination of a typewriting machine having a carriage and aplaten therein, a sound-deadening casing for said machine having ahorizont-al slot at the 'front thereof, and means extending through.said slot and traveling therealong, substantially opposite the middleof said carriage at all times, for

line-spacing said platen and releasing said carriage.

JOHN WALnnmM.

Witnesses z MARION R. MCCAIFREY, CATHERINE A; NEWELL.

